Sounds like the old me. I apologize if this comes across as anything other than honest advice from my own personal experience, but what helped me the most in terms of motivation/willpower to get things done (in life, in general) was losing weight. I had to be honest with myself about the fact that I was getting fatter and fatter every year, so I went on a consistent diet for 4 months (and going) and I lost 40 lbs. It has been a game changer in all aspects of my life, let alone having the drive to finish programming assignments. The one thing I still do struggle with is getting myself to exercise because I’ve never been an active person and I have asthma (if you know, you know), so working out is literally painful. If you’re interested to know, I just cut back on all the sugar/carbohydrates that I was consuming and replaced it with it protein and fat. So nothing sugary at all. ever. Ever ever. And no foods that break down like sugar either, so essentially no carbs (bread/pasta/cereal/cakes/rice/starchy stuff). Aside from the diet I can recommend taking as long of a break as you can, and when you return, change your work environment. Something as simple as taking your laptop to another desk or another room, and getting right to it with a fresh perspective. Taking breaks and changing environments has been helpful for me too.